CN105803940A - Novel main cable strand for suspension bridge - Google Patents
Novel main cable strand for suspension bridge Download PDFInfo
- Publication number
- CN105803940A CN105803940A CN201610278454.4A CN201610278454A CN105803940A CN 105803940 A CN105803940 A CN 105803940A CN 201610278454 A CN201610278454 A CN 201610278454A CN 105803940 A CN105803940 A CN 105803940A
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- CN
- China
- Prior art keywords
- strand
- fixture block
- high tensile
- tensile steel
- main cable
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
- E01D2101/34—Metal non-ferrous, e.g. aluminium
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a novel main cable strand for a suspension bridge. The novel main cable strand comprises a cable strand body, wherein the cable strand body comprises a plurality of high-strength steel wires, each high-strength steel wire is wrapped with an aluminum cladding, and all the high-strength steel wires wrapped with the aluminum claddings are wrapped with wrapping bands. The novel main cable strand has the advantage that the corrosion resistance performance of the main cable strand is improved.
Description
Technical field
The present invention relates to the structural texture of suspension bridge, be specifically related to a kind of novel main cable strand of suspension bridge.
Background technology
Suspension bridge to hang and to be anchored in the main cable strand bridge as the main supporting member of superstructure of two sides (or bridge two ends) by Sarasota.The design reference period of suspension bridge is 100 years, the coating wire that current main rope of suspension bridge strand adopts is zinc coated high strength steel silk or zinc-plated aluminum high tensile steel wire (aluminum content is 4.2～7.2wt%), steel wire corrosion condition detection through built suspension bridge both at home and abroad, the main cable strand that this material is made, after bridge uses more than 20 year, steel wire has occurred as soon as rust corrosion situation.Up to now, the main cable strand of suspension bridge is non-exchange component.Therefore the etching problem of main cable strand steel wire seriously endangers the safety of suspension bridge.Becoming increasingly complex now with environmental change, the main cable strand corrosion degradation in restriction suspension bridge service life has constituted the threat to bridge structure durability and challenge, becomes the development of Long span cable load-bearing bridge and the severe problem in operation.It is put the problem anxious to be resolved in this area that the material that research and development utilize antiseptic property superior produces the high main cable strand of durability.
Summary of the invention
For deficiency existing in prior art, the invention provides a kind of novel main cable strand of suspension bridge, enhance the decay resistance of main cable strand.
For achieving the above object, present invention employs following technical scheme:
A kind of novel main cable strand of suspension bridge, including strand, strand includes some high tensile steel wires, is all coated with aluminum covering outside every high tensile steel wire, is coated with, at all high tensile steel wires being coated with aluminum covering, the band that is wrapped.
Preferably, the thickness of described aluminum covering is equal to 10um.
Preferably, the cross section of described strand is regular hexagon structure.
Preferably, the ground tackle for fixing strand it is provided with at strand two ends.
Preferably, ground tackle includes anchor cup, and the end that anchor cup enters for strand is entrance point, and the end that anchor cup passes for strand is the port of export；Entrance point is provided with the waterproof drum communicated with anchor cup, the end of waterproof drum is provided with the first clamp system, so that all high tensile steel wires of strand are closed up clamping, the port of export is also provided with injection groove, to inject pltine by injection groove to gap between anchor cup and each high tensile steel wire；The port of export is provided with the second clamp system, with by the separately clamping of each high tensile steel wire of strand.
Preferably, described first clamp system includes being formed after the first fixture block and the second fixture block, the first fixture block and the conjunction of the second fixture block are closed regular hexagon circulus, and the first fixture block and the second fixture block are for closing up clamping by all high tensile steel wires of strand；First fixture block is fixed on the inwall of waterproof drum by several first dowels；Being extended with guide cylinder to waterproof drum center on the inwall of waterproof drum, be connected to screw rod on the edge of the second fixture block, screw rod passes guide cylinder and waterproof drum and threadeds with guide cylinder and waterproof drum, to pass through to regulate the second fixture block and the first fixture block opening and closing.
Preferably, described second clamp system includes the end cap that engagement thread is covered on the port of export, and end cap is made up of block and shrouding disc, and shrouding disc center offers installing hole, a center ring and several stripper loops, center ring and all stripper loops is had to be circular ring structure in installing hole；Center ring arranges shrouding disc center, and is fixed by the second dowel and shrouding disc；Each stripper loop all adopts elastomeric material to make, and stripper loop is uniformly distributed from inside to outside centered by center ring, is all extended with separation post outside each stripper loop and on outside center ring, is all extended with separating tube inside each stripper loop；Wherein, at center ring with between interior stripper loop and between two adjacent stripper loops, separating tube is all arranged in pairs with separating post；Every pair of separation post and separating tube separate post penetrate in separating tube and separate post and stretch into and between the end in separating tube and the inner bottom surface of separating tube, be connected to spring；Every high tensile steel wire is located between adjacent two pairs of separation posts and separating tube；Being extended with sliding cylinder on installing hole inwall, the separation post being positioned at the stripper loop of outermost stretches into sliding cylinder and can slide at sliding cylinder；The stripper loop of outermost, separate post, gap between sliding cylinder and shrouding disc for injecting groove.
Compared to prior art, there is advantages that
1) by being all coated with aluminum covering outside every high tensile steel wire, because aluminum all has the performance of easily cladding, therefore very easily at every high tensile steel wire outer cladding aluminum covering, processing technique is simple；
2) by being all coated with aluminum covering outside every high tensile steel wire, owing under room temperature, the surface of aluminum is very easily oxidized, one layer of compact aluminum oxide thin film is generated after oxidation reaction, stop internal aluminum oxidized further, therefore the corrosion resistance of aluminum is stronger, thus under the environment that pH value is 7, corrosion rate is 0.0062g/h.m2Standard salt fog corrosion rate with the high tensile steel wire of aluminum covering is substantially less than coating wire, decay resistance improves 10 times, avoid the loss of strength that in plating process, the long-time hot dipping of steel wire causes simultaneously, make to manufacture the main cable strand obtained and have higher intensity, the life-span finally making main cable strand brought up to 50 years from 20～30 years, brought huge economic results in society；
3) add, owing to the density of aluminum is 2.7g/m3, therefore when identical mechanical property and same diameter, the weight manufacturing the main cable strand obtained can be lighter, has effectively saved bridge construction cost.
Accompanying drawing explanation
Fig. 1 is this suspension bridge structural representation with novel main cable strand；
Fig. 2 is the A-A sectional view of strand 1 in Fig. 1；
Fig. 3 is the B direction view of ground tackle in Fig. 1；
Fig. 4 is the C direction view of ground tackle in Fig. 1.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the present invention proposes a kind of novel main cable strand of suspension bridge, including strand 1, strand 1 includes some high tensile steel wires 2, outside every high tensile steel wire 2, all it is coated with aluminum covering (not shown), is coated with, at all high tensile steel wires 2 being coated with aluminum covering, the band 3 that is wrapped.
In order to both ensure that the thickness of aluminum covering is enough to reach to strengthen corrosion resistance, ensures that again the intensity being coated with the high tensile steel wire 2 of aluminum covering is not subjected to impact, the thickness of described aluminum covering is less than or equal to 10um.Owing to the intensity of aluminum is well below high tensile steel wire 2, then just require the THICKNESS CONTROL of aluminum covering within the specific limits, therefore to ensure that the intensity being coated with the high tensile steel wire 2 of aluminum covering is not subjected to impact, the thickness of aluminum covering is necessarily equal to 10um.
The cross section of described strand 1 is regular hexagon structure.
As it is shown in figure 1, in order to realize the fixing of strand, be provided with the ground tackle 4 for fixing strand 1 at strand 1 two ends.
As shown in Fig. 1, Fig. 3 and Fig. 4, in order to realize the easy for installation of ground tackle 4 and strand 1, ground tackle 4 includes anchor cup 41, and the end that anchor cup 41 enters for strand 1 is entrance point 42, and the end that anchor cup 41 passes for strand 1 is the port of export 43；Entrance point 42 is provided with the waterproof drum 49 communicated with anchor cup 41, the end of waterproof drum 49 is provided with the first clamp system, so that all high tensile steel wires of strand 1 are closed up clamping, also injection groove it is provided with, to inject pltine by injection groove to gap between anchor cup 41 and each high tensile steel wire at the port of export 43；The port of export 43 is provided with the second clamp system, with by the separately clamping of each high tensile steel wire of strand 1.So that high tensile steel wire is connected more firm with ground tackle 4, therefore anchor cup 41 is first set at the two ends of strand 1, then gap irrigates pltine again between anchor cup 41 and high tensile steel wire, and high tensile steel wire is sub-wire in anchor cup 41, so that each high tensile steel wire contacts more abundant with pltine, after pltine solidification, high tensile steel wire is connected more firm with ground tackle 4.But when irrigating pltine, anchor cup 41 should be made constant with the relative position of strand 1, to keep strand 1 size that manufacture obtains to meet regulation；Make high tensile steel wire sub-wire in anchor cup 41 again, reach two requirements simultaneously, bring difficulty to perfusion.Therefore the first clamp system is designed, so that all high tensile steel wires of strand 1 are closed up clamping so that anchor cup 41 is constant with the relative position of strand 1；Design the second clamp system so that each high tensile steel wire is separated from each other in anchor cup 41, to facilitate from injecting groove to perfusion pltine in anchor cup 41, thus bringing conveniently finally to the installation of ground tackle 4 and strand 1 simultaneously.
As it is shown on figure 3, described first clamp system includes the first fixture block 51 and the second fixture block 52, the first fixture block 51 and the second fixture block 52 close and form regular hexagon circulus after closing, and the first fixture block 51 and the second fixture block 52 are for closing up clamping by all high tensile steel wires of strand 1；First fixture block 51 is fixed on the entrance point 42 of anchor cup 41 by several first dowels 53；Entrance point 42 inwall is extended with guide cylinder 54 to entrance point 42 center, the edge of the second fixture block 52 is connected to screw rod 55, screw rod 55 passes guide cylinder 54 and anchor cup 41 and threadeds with guide cylinder 54 and anchor cup 41, to pass through to regulate the second fixture block 52 and the first fixture block 51 opening and closing.During use, first, turn screw rod 55, be the second fixture block 52 away from the first fixture block 51, to facilitate the strand 1 that closes up through gap the first fixture block 51 and the second fixture block 52；Then, the position alignment the first clamping block on anchor cup 41 installed on strand 1 with anchor cup 41；Finally, turn screw rod 55, distance between first clamping block and the second tight block is diminished, the most all high tensile steel wires closed up of strand 1 are just between the first fixture block 51 and the second fixture block 52, achieve fixing between anchor cup 41 and strand 1 relative position, and the first clamping structure is easy to use, simple in construction.
As shown in Figure 4, described second clamp system includes the end cap 61 that engagement thread is covered on the port of export 43, end cap 61 is made up of block and shrouding disc, shrouding disc center offers installing hole, a center ring 62 and several stripper loops 63, center ring 62 and all stripper loops 63 is had to be circular ring structure in installing hole；Center ring 62 arranges shrouding disc center, and is fixed with shrouding disc by the second dowel 67；Each stripper loop 63 all adopts elastomeric material to make, and stripper loop 63 is uniformly distributed from inside to outside centered by center ring 62, is all extended with separation post 65, is all extended with separating tube 64 inside each stripper loop 63 outside each stripper loop 63 and on outside center ring 62；Wherein, at center ring 62 with between interior stripper loop 63 and between two adjacent stripper loops 63, separating tube 64 is all arranged in pairs with separating post 65；Every pair of separation post 65 and separating tube 64 separate post 65 penetrate in separating tube 64 and separate post 65 and stretch into and be connected to spring (not shown) between the inner bottom surface of the end in separating tube 64 and separating tube 64；Every high tensile steel wire is located between adjacent two pairs of separation posts 65 and separating tube 64；Being extended with sliding cylinder 66 on installing hole inwall, the separation post 65 being positioned at the stripper loop 63 of outermost stretches into sliding cylinder 66 and can slide at sliding cylinder 66；The stripper loop 63 of outermost, separate post 65, gap between sliding cylinder 66 and shrouding disc for injecting groove.In use, first, unscrewing end cap 61, end cap 61 and the port of export 43 depart from, and are passed by each high tensile steel wire to facilitate；Then, pull stripper loop 63 so that between adjacent two pairs of separation posts 65 and separating tube 64, gap becomes big, to facilitate each high tensile steel wire through gap adjacent two pairs of separation posts 65 and separating tube 64, under the elastic-restoring force of spring and stripper loop 63, by high tensile steel wire money to a certain extent；Finally, hold high tensile steel wire so that end cap 61 moves to the port of export 43, end cap 61 and the port of export 43 to be tightened, finally realize the sub-wire of high tensile steel wire, bring conveniently to perfusion pltine.Inject the reserved of groove, facilitate injection pltine.
What finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to preferred embodiment, it will be understood by those within the art that, technical scheme can be modified or equivalent replacement, without deviating from objective and the scope of technical solution of the present invention, it all should be encompassed in the middle of scope of the presently claimed invention.
Claims (7)
1. the novel main cable strand of suspension bridge, including strand, it is characterised in that strand includes some high tensile steel wires, is all coated with aluminum covering outside every high tensile steel wire, is coated with, at all high tensile steel wires being coated with aluminum covering, the band that is wrapped.
2. the novel main cable strand of suspension bridge according to claim 1, it is characterised in that the thickness of described aluminum covering is equal to 10um.
3. the novel main cable strand of suspension bridge according to claim 1, it is characterised in that the cross section of described strand is regular hexagon structure.
4. the novel main cable strand of suspension bridge according to claim 1, it is characterised in that be provided with the ground tackle for fixing strand at strand two ends.
5. the novel main cable strand of suspension bridge according to claim 4, it is characterised in that ground tackle includes anchor cup, the end that anchor cup enters for strand is entrance point, and the end that anchor cup passes for strand is the port of export；
Entrance point is provided with the waterproof drum communicated with anchor cup, the end of waterproof drum is provided with the first clamp system, so that all high tensile steel wires of strand are closed up clamping, the port of export is also provided with injection groove, to inject pltine by injection groove to gap between anchor cup and each high tensile steel wire；
The port of export is provided with the second clamp system, with by the separately clamping of each high tensile steel wire of strand.
6. the novel main cable strand of suspension bridge according to claim 5, it is characterized in that, described first clamp system includes the first fixture block and the second fixture block, first fixture block and the second fixture block close and form regular hexagon circulus after closing, and the first fixture block and the second fixture block are for closing up clamping by all high tensile steel wires of strand；
First fixture block is fixed on the inwall of waterproof drum by several first dowels；
Being extended with guide cylinder to waterproof drum center on the inwall of waterproof drum, be connected to screw rod on the edge of the second fixture block, screw rod passes guide cylinder and waterproof drum and threadeds with guide cylinder and waterproof drum, to pass through to regulate the second fixture block and the first fixture block opening and closing.
7. the novel main cable strand of suspension bridge according to claim 5, it is characterized in that, described second clamp system includes the end cap that engagement thread is covered on the port of export, end cap is made up of block and shrouding disc, shrouding disc center offers installing hole, a center ring and several stripper loops, center ring and all stripper loops is had to be circular ring structure in installing hole；
Center ring arranges shrouding disc center, and is fixed by the second dowel and shrouding disc；
Each stripper loop all adopts elastomeric material to make, and stripper loop is uniformly distributed from inside to outside centered by center ring, is all extended with separation post outside each stripper loop and on outside center ring, is all extended with separating tube inside each stripper loop；
Wherein, at center ring with between interior stripper loop and between two adjacent stripper loops, separating tube is all arranged in pairs with separating post；Every pair of separation post and separating tube separate post penetrate in separating tube and separate post and stretch into and between the end in separating tube and the inner bottom surface of separating tube, be connected to spring；Every high tensile steel wire is located between adjacent two pairs of separation posts and separating tube；Being extended with sliding cylinder on installing hole inwall, the separation post being positioned at the stripper loop of outermost stretches into sliding cylinder and can slide at sliding cylinder；The stripper loop of outermost, separate post, gap between sliding cylinder and shrouding disc for injecting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610278454.4A CN105803940B (en) | 2016-04-29 | 2016-04-29 | The new main cable strand of suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610278454.4A CN105803940B (en) | 2016-04-29 | 2016-04-29 | The new main cable strand of suspension bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105803940A true CN105803940A (en) | 2016-07-27 |
| CN105803940B CN105803940B (en) | 2017-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610278454.4A Active CN105803940B (en) | 2016-04-29 | 2016-04-29 | The new main cable strand of suspension bridge |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052911A (en) * | 1989-12-18 | 1991-07-10 | 湖南省公路桥梁建设公司六公司 | The wire digging line of double-deck protection |
| JP2000073287A (en) * | 1998-08-25 | 2000-03-07 | Hitachi Cable Ltd | Cable for hanging structure |
| CN101036923A (en) * | 2007-01-17 | 2007-09-19 | 新华金属制品股份有限公司 | Prestressed aluminum-cladding stranded wire |
| CN201730051U (en) * | 2009-11-27 | 2011-02-02 | 上海浦江缆索股份有限公司 | Prefabricated parallel galvanized aluminized wire cable strand |
| CN201991141U (en) * | 2011-01-27 | 2011-09-28 | 柳州欧维姆机械股份有限公司 | Prestressed steel wire socket type anchorage device |
| CN205557335U (en) * | 2016-04-29 | 2016-09-07 | 重庆万桥交通科技发展有限公司 | Suspension bridge is with novel main push -towing rope strand |
-
2016
- 2016-04-29 CN CN201610278454.4A patent/CN105803940B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052911A (en) * | 1989-12-18 | 1991-07-10 | 湖南省公路桥梁建设公司六公司 | The wire digging line of double-deck protection |
| JP2000073287A (en) * | 1998-08-25 | 2000-03-07 | Hitachi Cable Ltd | Cable for hanging structure |
| CN101036923A (en) * | 2007-01-17 | 2007-09-19 | 新华金属制品股份有限公司 | Prestressed aluminum-cladding stranded wire |
| CN201730051U (en) * | 2009-11-27 | 2011-02-02 | 上海浦江缆索股份有限公司 | Prefabricated parallel galvanized aluminized wire cable strand |
| CN201991141U (en) * | 2011-01-27 | 2011-09-28 | 柳州欧维姆机械股份有限公司 | Prestressed steel wire socket type anchorage device |
| CN205557335U (en) * | 2016-04-29 | 2016-09-07 | 重庆万桥交通科技发展有限公司 | Suspension bridge is with novel main push -towing rope strand |
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| Publication number | Publication date |
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| CN105803940B (en) | 2017-11-07 |
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